我有以下代码:
typealias queryCompletionBlock = (_ finished:Bool) -> Void
func queryForParams(@escaping completion:queryCompletionBlock)
但我得到一个错误
Attribute can only be applied to types, not declarations
问题在于该函数需要转义该块。如何用转义块声明上述功能?
最佳答案
func queryForParams(completion: @escaping queryCompletionBlock)